Do I need a permit for a kitchen remodel in Seattle?
Answered by AskBaily Editorial · Updated
Short answer
Yes whenever you alter gas piping, relocate plumbing, modify electrical circuits beyond like-for-like, change partition walls, or reconfigure mechanical ventilation. A like-for-like cabinet-and-countertop refresh with no plumbing, gas, or electrical moves can sometimes run without a permit. Anything with relocated fixtures, new electrical circuits, or structural changes routes through SDCI plan review — typically 8-16 weeks.
In detail
Most Seattle kitchen remodels require a permit. The Seattle Building Code under SMC 22.100, the Seattle Residential Code under SMC 22.200, the Seattle Mechanical Code, the Seattle Energy Code under SMC 22.700, and the Seattle Electrical Code under SMC 22.700 collectively set the trigger thresholds, and the bar for permit-exempt work is low.
Work that genuinely does not require a permit is limited to like-for-like replacement that does not relocate fixtures, alter circuits beyond a one-for-one device swap, modify gas piping, change framing, or affect mechanical ventilation. A new countertop on existing cabinets, refacing existing cabinet boxes, or swapping a single dishwasher in the existing footprint generally falls within the exemption under SBC Section 105.2 as adopted by SMC 22.100.080.
Everything else routes to permit. Specifically: relocating a sink, range, or refrigerator water line triggers a plumbing permit under SMC 22.500. Adding or relocating any 120-volt or 240-volt circuit, installing a new sub-panel, upgrading the service from 100 amp to 200 amp, or running new branch circuits for an induction range, EV charger, or pot filler triggers an electrical permit under SMC 22.700. Modifying or removing a partition wall — even a non-bearing one — typically triggers a building permit because Seattle plan reviewers verify shear-wall continuity, fire-blocking, and energy compliance at the same time. Changes to range hood capture-and-containment performance or any duct routing trigger mechanical permit review under the Seattle Mechanical Code.
Gas-piping work, including moving a range gas stub or capping a line for an induction conversion, requires either a fuel-gas permit pulled by an L&I-registered HVAC or plumbing contractor or by Puget Sound Energy depending on the meter side of the work. Standard permitted kitchen scopes route through SDCI plan review on the 8-to-16-week track described in the SDCI permit-timeline FAQ. Pulling a permit is also the homeowner's leverage at resale — unpermitted kitchen work appears in inspection reports and in the King County Assessor record and routinely shaves 15 to 30 thousand dollars off offers.
Sources
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